src/Model/Model_BodyBuilder.cpp

   1 // Copyright (C) 2014-2020  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include <Model_BodyBuilder.h>
  21
  22 #include <Locale_Convert.h>
  23
  24 #include <Model_Data.h>
  25 #include <Model_Document.h>
  26 #include <ModelAPI_Session.h>
  27 #include <TNaming_Builder.hxx>
  28 #include <TNaming_NamedShape.hxx>
  29 #include <TNaming_Iterator.hxx>
  30 #include <TNaming_Tool.hxx>
  31 #include <TNaming_SameShapeIterator.hxx>
  32 #include <TDataStd_Name.hxx>
  33 #include <TDataStd_Integer.hxx>
  34 #include <TDataStd_ExtStringList.hxx>
  35 #include <TopoDS.hxx>
  36 #include <TopoDS_Face.hxx>
  37 #include <TDF_ChildIterator.hxx>
  38 #include <TDF_ChildIDIterator.hxx>
  39 #include <TDF_Reference.hxx>
  40 #include <TDF_Tool.hxx>
  41 #include <TopTools_MapOfShape.hxx>
  42 #include <TopExp_Explorer.hxx>
  43 #include <TopTools_ListOfShape.hxx>
  44 #include <TopTools_ListIteratorOfListOfShape.hxx>
  45 #include <TopTools_DataMapOfShapeListOfShape.hxx>
  46 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
  47 #include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
  48 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  49 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  50 #include <TopTools_IndexedMapOfShape.hxx>
  51 #include <TopTools_DataMapOfShapeShape.hxx>
  52 #include <TopExp.hxx>
  53 #include <BRepTools.hxx>
  54 #include <BRep_Tool.hxx>
  55 #include <BRepTools_History.hxx>
  56 #include <GeomAPI_Shape.h>
  57 #include <GeomAPI_ShapeExplorer.h>
  58 #include <GeomAlgoAPI_MakeShape.h>
  59 #include <GeomAlgoAPI_SortListOfShapes.h>
  60 #include <Config_PropManager.h>
  61 // DEB
  62 //#include <TCollection_AsciiString.hxx>
  63 //#define DEB_IMPORT 1
  64
  65 /// reference to the shape in external document: sting list attribute identifier
  66 static const Standard_GUID kEXTERNAL_SHAPE_REF("9aa5dd14-6d34-4a8d-8786-05842fd7bbbd");
  67
  68 static const int INVALID_TAG            = -1;
  69 static const int GENERATED_VERTICES_TAG = 1;
  70 static const int GENERATED_EDGES_TAG    = 2;
  71 static const int GENERATED_FACES_TAG    = 3;
  72 static const int MODIFIED_VERTICES_TAG  = 4;
  73 static const int MODIFIED_EDGES_TAG     = 5;
  74 static const int MODIFIED_FACES_TAG     = 6;
  75 static const int DELETED_TAG            = 7;
  76 static const int PRIMITIVES_START_TAG   = 11;
  77
  78 static int getGenerationTag(const TopoDS_Shape& theShape) {
  79   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  80   switch (aShapeType) {
  81     case TopAbs_VERTEX: return GENERATED_VERTICES_TAG;
  82     case TopAbs_EDGE:   return GENERATED_EDGES_TAG;
  83     case TopAbs_FACE:   return GENERATED_FACES_TAG;
  84     default: break; // [to avoid compilation warning]
  85   }
  86
  87   return INVALID_TAG;
  88 }
  89
  90 static int getModificationTag(const TopoDS_Shape& theShape) {
  91   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  92   switch (aShapeType) {
  93     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  94     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  95     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  96     default: break; // [to avoid compilation warning]
  97   }
  98
  99   return INVALID_TAG;
 100 }
 101
 102 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
 103                             const TopoDS_Shape& theOldShape,
 104                             const TopoDS_Shape& theNewShape)
 105 {
 106   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 107     aNamingIt.More();
 108     aNamingIt.Next())
 109   {
 110     if (aNamingIt.NewShape().IsSame(theNewShape)
 111       && aNamingIt.OldShape().IsSame(theOldShape))
 112     {
 113       return true;
 114     }
 115   }
 116
 117   return false;
 118 }
 119
 120 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 121 : ModelAPI_BodyBuilder(theOwner),
 122   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 123 {
 124 }
 125
 126 /// Checks that shape is presented in the tree with not-selection evolution
 127 /// In theOriginalLabel it returns label where NS of old sub-shape is stored
 128 static bool isShapeInTree(const TDF_Label& theAccess1, const TDF_Label& theAccess2,
 129   TopoDS_Shape theShape, TDF_Label& theOriginalLabel)
 130 {
 131   bool aResult = TNaming_Tool::HasLabel(theAccess1, theShape);
 132   if (aResult) { //check evolution and a label of this shape
 133     for(TNaming_SameShapeIterator aShapes(theShape, theAccess1); aShapes.More(); aShapes.Next())
 134     {
 135       static Handle(TNaming_NamedShape) aNS;
 136       if (aShapes.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 137         if (aNS->Evolution() != TNaming_SELECTED) {
 138           theOriginalLabel = aNS->Label();
 139           return true;
 140         }
 141       }
 142     }
 143   }
 144   if (!theAccess2.IsNull()) {
 145     static const TDF_Label anEmpty;
 146     return isShapeInTree(theAccess2, anEmpty, theShape, theOriginalLabel);
 147   }
 148   return false;
 149 }
 150
 151 /// Stores entry to the external label in the entries list at this label
 152 static void storeExternalReference(const TDF_Label& theExternal, const TDF_Label theThis)
 153 {
 154   // store information about the external document reference to restore old shape on open
 155   if (!theExternal.IsNull() && !theExternal.Root().IsEqual(theThis.Root())) {
 156     Handle(TDataStd_ExtStringList) anEntries;
 157     if (!theThis.FindAttribute(kEXTERNAL_SHAPE_REF, anEntries)) {
 158       anEntries = TDataStd_ExtStringList::Set(theThis, kEXTERNAL_SHAPE_REF);
 159     }
 160     TCollection_AsciiString anEntry;
 161     TDF_Tool::Entry(theExternal, anEntry);
 162     // check it already contains this entry
 163     TDataStd_ListOfExtendedString::Iterator anIter(anEntries->List());
 164     for(; anIter.More(); anIter.Next())
 165       if (anIter.Value() == anEntry)
 166         break;
 167     if (!anIter.More()) {
 168       anEntries->Append(anEntry);
 169     }
 170   }
 171 }
 172
 173 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 174                               const bool theIsStoreSameShapes)
 175 {
 176   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 177   if (aData) {
 178     TDF_Label aShapeLab = aData->shapeLab();
 179     // clean builders
 180     clean();
 181     // store the new shape as primitive
 182     TNaming_Builder aBuilder(aShapeLab);
 183     if (!theShape)
 184       return;  // bad shape
 185     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 186     if (aShape.IsNull())
 187       return;  // null shape inside
 188
 189     if(!theIsStoreSameShapes) {
 190       Handle(TNaming_NamedShape) aNS;
 191       if (TNaming_Tool::HasLabel(aShapeLab, aShape))
 192         aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 193       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 194       if(!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShape)) {
 195         // This shape is already in document, store reference instead of shape;
 196         const TDF_Label aFoundLabel = aNS->Label();
 197         TDF_Reference::Set(aShapeLab, aFoundLabel);
 198         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 199         return;
 200       }
 201     }
 202
 203     aBuilder.Generated(aShape);
 204     // register name
 205     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 206     if(!aBuilder.NamedShape()->IsEmpty()) {
 207       Handle(TDataStd_Name) anAttr;
 208       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 209         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 210         if(!aName.empty()) {
 211           std::shared_ptr<Model_Document> aDoc =
 212             std::dynamic_pointer_cast<Model_Document>(document());
 213           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 214         }
 215       }
 216     }
 217   }
 218 }
 219
 220 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 221   const GeomShapePtr& theToShape, const bool theIsCleanStored)
 222 {
 223   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 224   if (aData) {
 225     // clean builders
 226     if (theIsCleanStored)
 227       clean();
 228     TNaming_Builder* aBuilder = builder(0);
 229     if (!theFromShape || !theToShape)
 230       return;  // bad shape
 231     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 232     if (aShapeBasis.IsNull())
 233       return;  // null shape inside
 234     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 235     if (aShapeNew.IsNull())
 236       return;  // null shape inside
 237
 238     // There is no sense to write history if old shape does not exist in the document.
 239     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 240       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 241     TDF_Label anOriginalLabel;
 242     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeBasis, anOriginalLabel)) {
 243       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 244         aBuilder->Generated(aShapeNew);
 245       }
 246     } else {
 247       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 248         myBuilders.erase(0);
 249         aBuilder = builder(0);
 250       }
 251
 252       aBuilder->Generated(aShapeBasis, aShapeNew);
 253       // store information about the external document reference to restore old shape on open
 254       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 255     }
 256
 257     // register name
 258     if(!aBuilder->NamedShape()->IsEmpty()) {
 259       Handle(TDataStd_Name) anAttr;
 260       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 261         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 262         if(!aName.empty()) {
 263           std::shared_ptr<Model_Document> aDoc =
 264             std::dynamic_pointer_cast<Model_Document>(document());
 265           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 266         }
 267       }
 268     }
 269   }
 270 }
 271
 272 void Model_BodyBuilder::storeGenerated(const std::list<GeomShapePtr>& theFromShapes,
 273   const GeomShapePtr& theToShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 274 {
 275   bool aStored = false;
 276   std::list<GeomShapePtr>::const_iterator anOldIter = theFromShapes.cbegin();
 277   for (; anOldIter != theFromShapes.cend(); anOldIter++) {
 278     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire();
 279     if (!aStore) {
 280       ListOfShape aNews; // check this old really generates theToShape
 281       theMakeShape->generated(*anOldIter, aNews);
 282       ListOfShape::iterator aNewIter = aNews.begin();
 283       for (; aNewIter != aNews.end(); aNewIter++) {
 284         if (theToShape->isSame(*aNewIter))
 285           break;
 286       }
 287       aStore = aNewIter != aNews.end();
 288     }
 289     if (aStore) {
 290       storeGenerated(*anOldIter, theToShape, !aStored);
 291       TNaming_Builder* aBuilder = builder(0);
 292       aStored = !aBuilder->NamedShape()->IsEmpty();
 293     }
 294   }
 295   if (!aStored) { // store as PRIMITIVE, but clean in any way
 296     store(theToShape);
 297     return;
 298   }
 299 }
 300
 301 static TDF_Label builderLabel(DataPtr theData, const int theTag )
 302 {
 303   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theData);
 304   return theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag);
 305 }
 306
 307 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 308 {
 309   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 310   if (aFind == myBuilders.end()) {
 311     myBuilders[theTag] = new TNaming_Builder(builderLabel(data(), theTag));
 312     aFind = myBuilders.find(theTag);
 313   }
 314   return aFind->second;
 315 }
 316
 317 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 318                                       const GeomShapePtr& theNewShape,
 319                                       const bool theIsCleanStored)
 320 {
 321   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 322   if (aData) {
 323     // clean builders
 324     if (theIsCleanStored) clean();
 325     TNaming_Builder* aBuilder = builder(0);
 326     if (!theOldShape || !theNewShape)
 327       return;  // bad shape
 328     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 329     if (aShapeOld.IsNull())
 330       return;  // null shape inside
 331     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 332     if (aShapeNew.IsNull())
 333       return;  // null shape inside
 334
 335     // There is no sense to write history if old shape does not exist in the document.
 336     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 337       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 338     TDF_Label anOriginalLabel;
 339     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeOld, anOriginalLabel)) {
 340       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 341         aBuilder->Generated(aShapeNew);
 342       }
 343     } else {
 344       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 345         myBuilders.erase(0);
 346         aBuilder = builder(0);
 347       }
 348
 349       aBuilder->Modify(aShapeOld, aShapeNew);
 350       // store information about the external document reference to restore old shape on open
 351       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 352     }
 353
 354     if(!aBuilder->NamedShape()->IsEmpty()) {
 355       Handle(TDataStd_Name) anAttr;
 356       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(), anAttr)) {
 357         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 358         if(!aName.empty()) {
 359           std::shared_ptr<Model_Document> aDoc =
 360             std::dynamic_pointer_cast<Model_Document>(document());
 361           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 362         }
 363       }
 364     }
 365   }
 366 }
 367
 368 void Model_BodyBuilder::storeModified(const std::list<GeomShapePtr>& theOldShapes,
 369   const GeomShapePtr& theNewShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 370 {
 371   bool aStored = false;
 372   std::list<GeomShapePtr>::const_iterator anOldIter = theOldShapes.cbegin();
 373   for(; anOldIter != theOldShapes.cend(); anOldIter++) {
 374     // compounds may cause crash if call "modified"
 375     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire() ||
 376                 (*anOldIter)->isCompSolid();
 377     if (!aStore) {
 378       ListOfShape aNews; // check this old really modifies theNewShape
 379       theMakeShape->modified(*anOldIter, aNews);
 380       ListOfShape::iterator aNewIter = aNews.begin();
 381       for(; aNewIter != aNews.end(); aNewIter++) {
 382         if (theNewShape->isSame(*aNewIter))
 383           break;
 384       }
 385       aStore = aNewIter != aNews.end();
 386     }
 387     if (aStore) {
 388       storeModified(*anOldIter, theNewShape, !aStored);
 389       TNaming_Builder* aBuilder = builder(0);
 390       aStored = !aBuilder->NamedShape()->IsEmpty();
 391     }
 392   }
 393   if (!aStored) {
 394     // check the new shape is already in the tree, so, no need to store primitive, just reference
 395     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 396     if (aData.get()) {
 397       TDF_Label aShapeLab = aData->shapeLab();
 398       TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 399       Handle(TNaming_NamedShape) aNS;
 400       if (TNaming_Tool::HasLabel(aShapeLab, aShapeNew))
 401         aNS = TNaming_Tool::NamedShape(aShapeNew, aShapeLab);
 402       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 403       if (!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShapeNew)) {
 404         // This shape is already in document, store reference instead of shape;
 405         const TDF_Label aFoundLabel = aNS->Label();
 406         TDF_Reference::Set(aShapeLab, aFoundLabel);
 407         myBuilders.erase(0);
 408         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 409         return;
 410       }
 411     }
 412     store(theNewShape); // store as PRIMITIVE, but clean in any way
 413     return;
 414   }
 415 }
 416
 417 void Model_BodyBuilder::clean()
 418 {
 419   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 420   if (aLab.IsNull())
 421     return;
 422   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 423   for(; aBuilder != myBuilders.end(); aBuilder++) {
 424     Handle(TNaming_NamedShape) aNS = aBuilder->second->NamedShape();
 425     delete aBuilder->second;
 426     if (!aNS.IsNull() && !aNS->Label().IsNull())
 427       aNS->Label().ForgetAttribute(TNaming_NamedShape::GetID());
 428   }
 429   myBuilders.clear();
 430   myPrimitivesNamesIndexMap.clear();
 431   // remove the old reference (if any)
 432   aLab.ForgetAttribute(TDF_Reference::GetID());
 433   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 434   TDF_ChildIDIterator anEntriesIter(aLab, kEXTERNAL_SHAPE_REF, true);
 435   for(; anEntriesIter.More(); anEntriesIter.Next()) {
 436     anEntriesIter.Value()->Label().ForgetAttribute(kEXTERNAL_SHAPE_REF);
 437   }
 438 }
 439
 440 void Model_BodyBuilder::cleanCash()
 441 {
 442   myPrimitivesNamesIndexMap.clear();
 443 }
 444
 445 Model_BodyBuilder::~Model_BodyBuilder()
 446 {
 447   clean();
 448 }
 449
 450 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 451 {
 452   std::string aName = theName;
 453   std::string aPrefix = "";
 454   switch (theTag) {
 455     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 456     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 457     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 458     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 459     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 460     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 461   }
 462   aName.insert(0, aPrefix);
 463
 464   TDataStd_Name::Set(builderLabel(data(), theTag), aName.c_str());
 465 }
 466 bool Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 467                                   const std::string& theName,
 468                                   const bool theCheckIsInResult)
 469 {
 470   GeomShapePtr aResultShape = shape();
 471   if (theCheckIsInResult) {
 472     bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 473     if (aNewShapeIsNotInResultShape) {
 474       return false;
 475     }
 476   }
 477
 478   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 479   builder(myFreePrimitiveTag)->Generated(aShape);
 480   if (!theName.empty()) {
 481     std::string aName = theName;
 482     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 483       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 484       aName += "_" + std::to_string(++(anIndexTags.index));
 485       anIndexTags.tags.push_back(myFreePrimitiveTag);
 486       if (anIndexTags.index == 2) {
 487         buildName(anIndexTags.tags.front(), theName + "_1");
 488       }
 489     }
 490     else {
 491       IndexTags anIndexTags;
 492       anIndexTags.index = 1;
 493       anIndexTags.tags.push_back(myFreePrimitiveTag);
 494       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 495     }
 496
 497     buildName(myFreePrimitiveTag, aName);
 498   }
 499   ++myFreePrimitiveTag;
 500   return true;
 501 }
 502
 503 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 504                                   const GeomShapePtr& theNewShape,
 505                                   const std::string& theName)
 506 {
 507   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 508   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 509   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 510   int aTag;
 511   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 512     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 513     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 514     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 515     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 516       builder(aTag)->Generated(anOldShape, anExp.Current());
 517     }
 518     buildName(aTag, theName);
 519   } else {
 520     aTag = getGenerationTag(aNewShape);
 521     if (aTag == INVALID_TAG) return;
 522     builder(aTag)->Generated(anOldShape, aNewShape);
 523     buildName(aTag, theName);
 524   }
 525 }
 526
 527 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 528                                  const GeomShapePtr& theNewShape,
 529                                  const std::string& theName)
 530 {
 531   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 532   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 533   int aTag = getModificationTag(aNewShape);
 534   if (aTag == INVALID_TAG) return;
 535   builder(aTag)->Modify(anOldShape, aNewShape);
 536   buildName(aTag, theName);
 537 }
 538
 539 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 540                                           const GeomShapePtr& theOldShape,
 541                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 542                                           const GeomShapePtr& theShapesToExclude)
 543 {
 544   TopTools_MapOfShape anAlreadyProcessedShapes;
 545   GeomShapePtr aResultShape = shape();
 546   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 547        anExp.more();
 548        anExp.next())
 549   {
 550     GeomShapePtr anOldSubShape = anExp.current();
 551     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 552     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 553         || !theAlgo->isDeleted(anOldSubShape)
 554         || aResultShape->isSubShape(anOldSubShape, false)
 555         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 556     {
 557       continue;
 558     }
 559
 560     ListOfShape aNewShapes;
 561     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 562       theAlgo->modified(anOldSubShape, aNewShapes);
 563     }
 564
 565     if (aNewShapes.size() == 0
 566         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 567       builder(DELETED_TAG)->Delete(anOldSubShape_);
 568     }
 569   }
 570 }
 571
 572 // Keep only the shapes with minimal shape type
 573 static void keepTopLevelShapes(ListOfShape& theShapes,
 574                                const TopoDS_Shape& theRoot,
 575                                const GeomShapePtr& theResultShape = GeomShapePtr())
 576 {
 577   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 578   ListOfShape::iterator anIt = theShapes.begin();
 579   while (anIt != theShapes.end()) {
 580     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 581     bool aSkip = aNewShape.IsNull() ||
 582       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 583     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 584         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 585       ListOfShape::iterator aRemoveIt = anIt++;
 586       theShapes.erase(aRemoveIt);
 587     } else {
 588       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 589       if (aType < aKeepShapeType) {
 590         // found a shape with lesser shape type => remove all previous shapes
 591         aKeepShapeType = aType;
 592         theShapes.erase(theShapes.begin(), anIt);
 593         ++anIt;
 594       } else if (aType > aKeepShapeType) {
 595         // shapes with greater shape type should be removed from the list
 596         ListOfShape::iterator aRemoveIt = anIt++;
 597         theShapes.erase(aRemoveIt);
 598       } else
 599         ++anIt;
 600     }
 601   }
 602 }
 603
 604 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 605                                            const GeomShapePtr& theOldShape,
 606                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 607                                            const std::string& theName)
 608 {
 609   GeomShapePtr aResultShape = shape();
 610   GeomShapePtr aShapeToExplore = theOldShape;
 611   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 612     // use optimized set of old shapes for this
 613     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 614                                                       aResultShape,
 615                                                       theShapeTypeToExplore);
 616     if (aCompound.get()) aShapeToExplore = aCompound;
 617   }
 618
 619   TopTools_MapOfShape anAlreadyProcessedShapes;
 620   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 621   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 622        anOldShapeExp.more();
 623        anOldShapeExp.next())
 624   {
 625     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 626     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 627
 628     // There is no sense to write history if shape already processed
 629     // or old shape does not exist in the document.
 630     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 631     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 632       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 633     TDF_Label anOriginalLabel;
 634     bool anOldSubShapeNotInTree =
 635       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 636     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 637       continue;
 638     }
 639
 640     // Get new shapes.
 641     ListOfShape aNewShapes;
 642     theAlgo->modified(anOldSubShape, aNewShapes);
 643
 644     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 645          aNewShapesIt != aNewShapes.cend();
 646          ++aNewShapesIt)
 647     {
 648       GeomShapePtr aNewShape = *aNewShapesIt;
 649       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 650       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 651
 652       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 653       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 654       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape)
 655         continue;
 656
 657       if (aResultShape->isSame(aNewShape))
 658         continue; // it is stored on the root level (2241 - history propagation issue)
 659
 660       int aTag = isGenerated ? getGenerationTag(aNewShape_) : getModificationTag(aNewShape_);
 661       TNaming_Builder*aBuilder = builder(aTag);
 662       if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_))
 663         continue; // new shape was already stored.
 664
 665       buildName(aTag, theName);
 666       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 667                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 668       // store information about the external document reference to restore old shape on open
 669       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 670     }
 671   }
 672 }
 673
 674 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 675                                             const GeomShapePtr& theOldShape,
 676                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 677                                             const std::string& theName,
 678                                             const bool theSaveOldIfNotInTree)
 679 {
 680   GeomShapePtr aResultShape = shape();
 681   TopTools_MapOfShape anAlreadyProcessedShapes;
 682   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 683   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 684        anOldShapeExp.more();
 685        anOldShapeExp.next())
 686   {
 687     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 688     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 689
 690     // There is no sense to write history if shape already processed
 691     // or old shape does not exist in the document.
 692     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 693     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 694       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 695     TDF_Label anOriginalLabel;
 696     bool anOldSubShapeNotInTree =
 697       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 698     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 699       if (theSaveOldIfNotInTree) {
 700         std::string aSelectionName = theName + "Selected";
 701         generated(anOldSubShape, aSelectionName, false);
 702       } else
 703         continue;
 704     }
 705
 706     // Get new shapes.
 707     ListOfShape aNewShapes;
 708     theAlgo->generated(anOldSubShape, aNewShapes);
 709
 710     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 711
 712     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 713          aNewShapesIt != aNewShapes.cend();
 714          ++aNewShapesIt)
 715     {
 716       GeomShapePtr aNewShape = *aNewShapesIt;
 717       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 718
 719       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 720       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 721       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape) {
 722         continue;
 723       }
 724
 725       if (aResultShape->isSame(aNewShape))
 726         continue; // it is stored on the root level
 727
 728       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 729       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 730         // TODO: This is a workaround. New shape should be only edge or face.
 731         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 732                                                                             : TopAbs_FACE;
 733         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 734         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 735           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 736           // store information about the external document reference to restore old shape on open
 737           storeExternalReference(anOriginalLabel, builderLabel(data(), aTag));
 738         }
 739         buildName(aTag, theName);
 740       } else {
 741         int aTag = getGenerationTag(aNewShape_);
 742         if (aTag == INVALID_TAG) return;
 743         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 744         buildName(aTag, theName);
 745         // store information about the external document reference to restore old shape on open
 746         storeExternalReference(anOriginalLabel, builderLabel(data(), aTag));
 747       }
 748     }
 749   }
 750 }
 751
 752 // LCOV_EXCL_START
 753 //=======================================================================
 754 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 755   const TopAbs_ShapeEnum        theGeneratedFrom,
 756   TopTools_DataMapOfShapeShape& theDangles)
 757 {
 758   theDangles.Clear();
 759   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 760   TopAbs_ShapeEnum GeneratedTo;
 761   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 762   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 763   else return Standard_False;
 764   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 765   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 766     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 767     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 768     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 769   }
 770   return theDangles.Extent();
 771 }
 772
 773 //=======================================================================
 774 void loadGeneratedDangleShapes(
 775   const TopoDS_Shape&      theShapeIn,
 776   const TopAbs_ShapeEnum   theGeneratedFrom,
 777   TNaming_Builder *        theBuilder)
 778 {
 779   TopTools_DataMapOfShapeShape dangles;
 780   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 781   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 782   for (; itr.More(); itr.Next())
 783     theBuilder->Generated(itr.Key(), itr.Value());
 784 }
 785 // LCOV_EXCL_STOP
 786
 787 //=======================================================================
 788 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 789                                        const std::string& theName)
 790 {
 791   if(theShape->isNull()) return;
 792   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 793   std::string aName;
 794   if (aShape.ShapeType() == TopAbs_SOLID) {
 795     TopExp_Explorer expl(aShape, TopAbs_FACE);
 796     for (; expl.More(); expl.Next()) {
 797       builder(myFreePrimitiveTag)->Generated(expl.Current());
 798       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 799       aName = theName + "_" + aStr.ToCString();
 800       buildName(myFreePrimitiveTag, aName);
 801       ++myFreePrimitiveTag;
 802     }
 803   }
 804   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 805     // load faces and all the free edges
 806     TopTools_IndexedMapOfShape Faces;
 807     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 808     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 809       TopExp_Explorer expl(aShape, TopAbs_FACE);
 810       for (; expl.More(); expl.Next()) {
 811         builder(myFreePrimitiveTag)->Generated(expl.Current());
 812         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 813         aName = theName + "_" + aStr.ToCString();
 814         buildName(myFreePrimitiveTag, aName);
 815         ++myFreePrimitiveTag;
 816       }
 817     }
 818     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 819     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 820     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 821     {
 822       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 823       if (aLL.Extent() < 2) {
 824         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 825           continue;
 826         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 827         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 828         aName = theName + "_" + aStr.ToCString();
 829         buildName(myFreePrimitiveTag, aName);
 830         ++myFreePrimitiveTag;
 831       } else {
 832         TopTools_ListIteratorOfListOfShape anIter(aLL);
 833         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 834         anIter.Next();
 835         if(aFace.IsEqual(anIter.Value())) {
 836           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 837           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 838           aName = theName + "_" + aStr.ToCString();
 839           buildName(myFreePrimitiveTag, aName);
 840           ++myFreePrimitiveTag;
 841         }
 842       }
 843     }
 844   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 845     TopTools_IndexedMapOfShape Edges;
 846     BRepTools::Map3DEdges(aShape, Edges);
 847     if (Edges.Extent() == 1) {
 848       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 849       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 850       for (; expl.More(); expl.Next()) {
 851         builder(myFreePrimitiveTag)->Generated(expl.Current());
 852         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 853         aName = theName + "_" + aStr.ToCString();
 854         buildName(myFreePrimitiveTag, aName);
 855         ++myFreePrimitiveTag;
 856       }
 857     } else {
 858       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 859       for (; expl.More(); expl.Next()) {
 860         builder(myFreePrimitiveTag)->Generated(expl.Current());
 861         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 862         aName = theName + "_" + aStr.ToCString();
 863         buildName(myFreePrimitiveTag, aName);
 864         ++myFreePrimitiveTag;
 865       }
 866       // and load generated vertices.
 867       TopTools_DataMapOfShapeShape generated;
 868       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 869       {
 870         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 871         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 872       }
 873     }
 874   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 875     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 876     for (; expl.More(); expl.Next()) {
 877       builder(myFreePrimitiveTag)->Generated(expl.Current());
 878       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 879       aName = theName + "_" + aStr.ToCString();
 880       buildName(myFreePrimitiveTag, aName);
 881       ++myFreePrimitiveTag;
 882     }
 883   }
 884 }
 885
 886 //=======================================================================
 887 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 888   TopTools_ListOfShape&   theList)
 889 {
 890   theList.Clear();
 891   // edges -> ancestor faces list
 892   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 893   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 894   // keeps the shapes which are already in the resulting list
 895   TopTools_MapOfShape alreadyThere;
 896   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 897   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 898
 899   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 900   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 901     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 902     if (ancestors.Extent() < 2)
 903       continue;
 904     Standard_Integer anID = 0;
 905     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 906       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 907     }
 908     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 909       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 910         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 911       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 912       for(; aSameEdge.More(); aSameEdge.Next()) {
 913         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 914           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 915         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 916           break;
 917
 918         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 919         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 920           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 921           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 922             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 923               break;
 924           }
 925           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 926             break;
 927         }
 928         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 929           if (alreadyThere.Add(aSameEdge.Value()))
 930             theList.Append(aSameEdge.Value());
 931           if (alreadyThere.Add(anAncestorsIter.Key()))
 932             theList.Append(anAncestorsIter.Key());
 933         }
 934       }
 935     } else { // ID is unique, just add this edge
 936       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 937     }
 938     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 939   }
 940   return theList.Extent();
 941 }
 942
 943 //=======================================================================
 944 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 945 {
 946   GeomShapePtr aShapePtr = shape();
 947   if (theShape->isNull() || !aShapePtr.get())
 948     return;
 949   TopoDS_Shape aShape = shape()->impl<TopoDS_Shape>();
 950   if (aShape.IsNull())
 951     return;
 952   std::string aName;
 953   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 954     TopoDS_Iterator itr(aShape);
 955     for (; itr.More(); itr.Next()) {
 956       builder(myFreePrimitiveTag)->Generated(itr.Value());
 957       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 958       aName = theName + "_" + aStr.ToCString();
 959       buildName(myFreePrimitiveTag, aName);
 960       ++myFreePrimitiveTag;
 961       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 962         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 963       {
 964         GeomShapePtr itrShape(new GeomAPI_Shape());
 965         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 966         loadFirstLevel(itrShape, theName);
 967       } else {
 968         GeomShapePtr itrShape(new GeomAPI_Shape());
 969         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 970         loadNextLevels(itrShape, theName);
 971       }
 972     }
 973   } else {
 974     GeomShapePtr itrShape(new GeomAPI_Shape());
 975     itrShape->setImpl(new TopoDS_Shape(aShape));
 976     loadNextLevels(itrShape, theName);
 977   }
 978   TopTools_ListOfShape   aList;
 979   if(findAmbiguities(aShape, aList)) {
 980     TopTools_ListIteratorOfListOfShape it(aList);
 981     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 982       builder(myFreePrimitiveTag)->Generated(it.Value());
 983       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 984       aName = theName + "_" + aStr.ToCString();
 985       buildName(myFreePrimitiveTag, aName);
 986     }
 987   }
 988 }
 989
 990 GeomShapePtr Model_BodyBuilder::shape()
 991 {
 992   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 993   if (aData && aData->isValid()) {
 994     TDF_Label aShapeLab = aData->shapeLab();
 995     Handle(TDF_Reference) aRef;
 996     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 997       aShapeLab = aRef->Get();
 998     }
 999     Handle(TNaming_NamedShape) aName;
1000     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
1001       TopoDS_Shape aShape = aName->Get();
1002       if (!aShape.IsNull()) {
1003         GeomShapePtr aRes(new GeomAPI_Shape);
1004         aRes->setImpl(new TopoDS_Shape(aShape));
1005         return aRes;
1006       }
1007     }
1008   }
1009   return GeomShapePtr();
1010 }